Претрага
603 items
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Recalibration of the hydrodynamic model for lignite deposit Drmno in the period od 2015,
Поломчић Душан, Здравковић Ј., Војнић М., Димитријевић Бојан. "Recalibration of the hydrodynamic model for lignite deposit Drmno in the period od 2015," in Зборник радова 8. Међународне конференције УГАЉ 2017, Београд, Србија:Југословенски комитет за површинску експлоатацију (2017): 341-350
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Метеорити Маркиза де Мороа у Збирци минерала и стена Рударско-геолошког факултета
Здравковић Алена (2014)Здравковић Алена. "Метеорити Маркиза де Мороа у Збирци минерала и стена Рударско-геолошког факултета" in Зборник радова XVI Конгреса геолога Србије, Доњи Милановац, 22-25 мај 2014, Београд :Српско геолошко друштво (2014): 895-903
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Održavanje sigurnosti funkcionisanja reduktora sond 450 u sklopu pogonske jedinice sa ispitivanjem na probnom stolu
Nebojša Zdravković (2010)Nebojša Zdravković. Održavanje sigurnosti funkcionisanja reduktora sond 450 u sklopu pogonske jedinice sa ispitivanjem na probnom stolu, Beograd:Rudarsko-geološki fakultet, 2010
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Geological Characteristics and 3D Model of the Brick Clay Deposit ‘’Majdan III’’ near Kanjiža
Zdravković Mladen, Simić Vladimir (2011)Zdravković Mladen, Simić Vladimir. "Geological Characteristics and 3D Model of the Brick Clay Deposit ‘’Majdan III’’ near Kanjiža" in The Geology in Digital Age - Proceedings of the 17th Meeting of the Association of European Geological Societies, MAEGS 17, Belgrade, [14-18. 09.] 2011. no. 17, Belgrade:The Serbian Geological Society (2011): 149-153
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The importance of preserving The Mineral and rock Collection at the Faculty of Mining and Geology
Zdravković Alena, Matović Vesna (2017)Zdravković Alena, Matović Vesna. "The importance of preserving The Mineral and rock Collection at the Faculty of Mining and Geology" in Mobility of University Heritage : book of abstracts / XVIII Universeum Network Meeting, Belgrade, 8-10 June 2017 no. 18, Beograd:Univerzitet u Beogradu i Universeum-Evropska mreža akademskog nasleđa (2017): 63
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The importance of preserving the collection of rocks and minerals at the Faculty of mining and geology
Alena Zdravković, Vesna Matović (2017)Alena Zdravković, Vesna Matović. "The importance of preserving the collection of rocks and minerals at the Faculty of mining and geology" in XVIII Universeum network meeting, Mobility of University Heritage, Book of Abstracts, University of Belgrade: (2017): 63-63
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Revizija mineraloške karakterizacije antičkih gema primenom nedestruktivnih mineraloških instrumentalnih metoda,
Zdravković Alena, Ignjatović Milorad (2018)Zdravković Alena, Ignjatović Milorad. "Revizija mineraloške karakterizacije antičkih gema primenom nedestruktivnih mineraloških instrumentalnih metoda," in XLI Skupština i godišnji skup Srpskog arheološkog društva, 135 godina Srpskog arheološkog društva, 31. maj – 02. jun, Pančevo, Program, izveštaji i apstrakti, Pančevo:Srpsko arheološko društvo, Beograd i Narodni muzej Pančevo, Pančevo (2018): 102-103
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Examination of mineral composition and color origin in natural pigments from France and Finland that are stored in the collection of rocks and minerals, University of Belgrade
Alena Zdravković, Maja Milošević (2022)Alena Zdravković, Maja Milošević. "Examination of mineral composition and color origin in natural pigments from France and Finland that are stored in the collection of rocks and minerals, University of Belgrade" in The Tenth Serbian Ceramic Society Conference »Advanced Ceramics and Application X«, Serbian Ceramic Society (2022)
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Secondary sulfate minerals associated with the weathering of pyrite
Dabić Predrag, Kovač Sabina, Zdravković Alena. "Secondary sulfate minerals associated with the weathering of pyrite" in XXIII konferencija Srpskog kristalografskog društva (izvodi radova) XXIII konferencija Srpskog kristalografskog društva (izvodi radova), Novi Sad, Srbija :Srpsko kristalografsko društvo (2016): 64-65
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Meteorite collection at the Faculty of Mining and Geology, Belgrade, Serbia – forgotten gems.
Alena Zdravković, Kristina Šarić, Ana Černok. "Meteorite collection at the Faculty of Mining and Geology, Belgrade, Serbia – forgotten gems." in EPSC Abstracts, EPSC2017-688-2, 2017, European Planetary Science Congress 2017. 11 (2017)
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Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?
... Gilded or Not? Alena Zdravković, Maja Milošević, Ivana Jelić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not? | Alena Zdravković, Maja Milošević, Ivana ...
... May 13–14, 2021, Miskolc, Hungary REPLICA OF THE “GREAT TRIANGLE GOLD NUGGET” BELONGING TO BELGRADE UNIVERSITY COLLECTION, GILDED OR NOT? ZDRAVKOVIĆ, A.1, MILOŠEVIĆ, M.1 & JELIĆ, I.2 1 Faculty of Mining and Geology, University of Belgrade, Belgrade, Serbia 2 Natural History Museum, Belgrade ...Alena Zdravković, Maja Milošević, Ivana Jelić. "Replica of the “Great Triangle Gold Nugget” Belonging to Belgrade University Collection, Gilded or Not?" in 8th Mineral Sciences in the Carpathians Conference, Acta Mineralogica-Petrographica, Miskolc, Hungary, Department of Mineralogy, Geochemistry and Petrology, University of Szeged, Szeged, Hungary (2021)
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Structural characterization of traditional pottery produced from local clay, Rujište (Ražanj, Central Serbia), in an effort to preserve its geoheritage
... pottery produced from local clay, Rujište (Ražanj, Central Serbia), in an effort to preserve its geoheritage Maja Milošević, Biljana Đorđević, Alena Zdravković Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Structural characterization of traditional pottery produced ...
... produced from local clay, Rujište (Ražanj, Central Serbia), in an effort to preserve its geoheritage | Maja Milošević, Biljana Đorđević, Alena Zdravković | 9th International Conference Mineralogy and Museums, Sofia, Bulgaria | 2021 | | http://dr.rgf.bg.ac.rs/s/repo/item/0005503 Дигитални репозиторијум ...Maja Milošević, Biljana Đorđević, Alena Zdravković . "Structural characterization of traditional pottery produced from local clay, Rujište (Ražanj, Central Serbia), in an effort to preserve its geoheritage" in 9th International Conference Mineralogy and Museums, Sofia, Bulgaria, Earth and Man National Museum and Bulgarian Mineralogical Society (2021)
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Comparison of raw clay from different localities for application in the production of traditional pottery in Serbia
Maja Milošević, Alena Zdravković, Biljana Đorđević. "Comparison of raw clay from different localities for application in the production of traditional pottery in Serbia" in The Tenth Serbian Ceramic Society Conference »Advanced Ceramics and Application«, Serbian Ceramic Society (2022)
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Primer mineraloške karakterizacije srednjovekovne šljake iz oblasti Pb-Zn rudnika „Rudnik” kao dela istraživanja u arheotehnologiji
Alena Zdravković, Suzana Erić, Kristina Šarić. "Primer mineraloške karakterizacije srednjovekovne šljake iz oblasti Pb-Zn rudnika „Rudnik” kao dela istraživanja u arheotehnologiji" in Prvi skup Sekcije za arheometriju, arheotehnologiju, geoarheologiju i eksperimentalnu arheologiju Srpskog arheološkog društva: "Aktuelna interdiscplinarna istraživanja tehnologije u arheologiji Jugoistočne Evrope" , Beograd, 29. februar 2020., Beograd : Srpsko arheološko društvo (2020)
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The number of unimodular roots of some reciprocal polynomials
Dragan Stankov (2020)We introduce a sequence P2n of monic reciprocal polynomials with integer coefficients having the central coefficients fixed. We prove that the ratio between number of nonunimodular roots of P2n and its degree d has a limit when d tends to infinity. We present an algorithm for calculation the limit and a numerical method for its approximation. If P2n is the sum of a fixed number of monomials we determine the central coefficients such that the ratio has the minimal limit. ...Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomialsDragan Stankov. "The number of unimodular roots of some reciprocal polynomials" in Cmptes rendus mathematique (2020). https://doi.org/10.5802/crmath.28
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Рударско путовање по Србији спроведено 1835. године по налогу Владе Кнежевине Србије
Фон Хердер Сигмунд, Бегенишић Добрила, Здравковић Алена. Рударско путовање по Србији спроведено 1835. године по налогу Владе Кнежевине Србије, Београд Београд:ЈП Службени гласник, 2014: 165
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Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja
Hidraulični bageri primenjuju se u različitim oblastima privrede a najzastupljeniji su u građevinarstvu i rudarstvu. Na površinskim kopovima sa kontinualnim sistemima, klasifikuju kao pomoćna mehanizacija a na površinskim kopovima sa diskontinualnim sistemima, kao osnovna mehanizacija. Kako je u oba slučaja njihova primena neizostavna, važno je izvršiti adekvatnu analizu postojećih podataka, u cilju optimizacije izbora tipa hidrauličnog bagera u odnosu na uslove rada datog površinskog kopa. U radu su opisane različite višekriterijumske metode koje su korišćene za analizu hidrauličnih bagera. ...... tokovi preferencije: 1 ( ) ( , ) j j j m m a a a (3) 1 ( ) ( , ) j j m j m a a a (4) Kako bi se ostvarilo multikriterijumsko rangiranje uvodi se neto tok: ( ) ( ) ( ); 1, ... ,j j j ja a a j J (5) gde je: J – broj alternativa Alternativa ...
... .., ...,ij ij j n MAX MIN A v j K i v j K v v v v i i (20) ' '' 1 2| | , ,..., ...,ij ij j n MIN MAX A v j K i v j K v v v v i i (21) 2 1 ( ) n ij j j Si v v (22) 2 1 ( ) n ij j j Si v v ...
... nesaglasnosti (30): , 1,2, ..., 1,2, ..., ij j ijv w r i m j n (28) ks 1 ( , ) za C = j C jks sjn kj j j w j c a b x xw , (29) max ksmax za D = j D kj sjks ks sj kj j J kj sj v v j d x xv v (30) U sledećem koraku se određuju ...Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Filip Miletić, Ivan Janković. "Analiza primene višekriterijumskih metoda u optimizaciji izbora hidruličnih bagera na površinskim kopovima uglja" in Tehnika, Centre for Evaluation in Education and Science (CEON/CEES) (2019). https://doi.org/10.5937/tehnika1903369D
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On the distribution modulo 1 of the sum of powers of a Salem number
Dragan Stankov (2016)It is well known that the sequence of powers of a Salem number θ, modulo 1, is dense in the unit interval, but is not uniformly distributed. Generalizing a result of Dupain, we determine, explicitly, the repartition function of the sequence , where P is a polynomial with integer coefficients and θ is quartic. Also, we consider some examples to illustrate the method of determination.Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomialsDragan Stankov. "On the distribution modulo 1 of the sum of powers of a Salem number" in Comptes rendus Mathematique (2016). https://doi.org/10.1016/j.crma.2016.03.012
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Organoselenium functionalized oxacycles as ligands in some trans-palladium(II) complexes: biological evaluation and interaction with small biomolecules
I. Raković, D. Ćoćić, O. Milošević-Djordjević, I. Radojević, M. N. Živanović, K. Virijević, J. Pavić, J. Tubić Vukajlović, A. Marković, J. S. Marjanović, M. D. Kostić, P. Čanović, A. Mijatović, V. M. Divac (2023)In this article, the biological evaluation and interaction of three selenium-based trans-palladium complexes (Pd–Se1, Pd–Se2, and Pd–Se3) with small biomolecules were performed. The UV–Vis kinetic studies on substitution reaction of synthesized complexes with selected biologically important N- and S-bonding ligands (LCys, GSH, L-Met, 50-GMP, L-His) has emphasized greater affinity of sulphur-based ligands for complex-binding, while the general order of the reactivity was L-Cys > GSH > L-Met > 50-GMP > L-His. The complex reactivity toward small biomolecules is influenced ...I. Raković, D. Ćoćić, O. Milošević-Djordjević, I. Radojević, M. N. Živanović, K. Virijević, J. Pavić, J. Tubić Vukajlović, A. Marković, J. S. Marjanović, M. D. Kostić, P. Čanović, A. Mijatović, V. M. Divac. "Organoselenium functionalized oxacycles as ligands in some trans-palladium(II) complexes: biological evaluation and interaction with small biomolecules" in Journal of Coordination Chemistry, Informa UK Limited (2023). https://doi.org/10.1080/00958972.2023.2256934
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A Fuzzy Expert Model for Availability Evaluation
Each technical system within itself carries the great potential danger of possible occurrence of failure and damages. Mining machines are characteristic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of service. Includes information regard to operating state, an idle state, a standby state and shut down. The ...... indicators (j = 1 … 5). Defined A fuzzy set can be written as: - poor = (1/j=1, 0.25/j=2, 0/j=3, 0/j=4, 0/j=5); - adequate = (0.25/j=1, 1/j=2, 0.25/j=3, 0/j=4, 0/j=5); - average = (0/j=1, 0.25/j=2, 1/j=3, 0.25/j=4, 0/j=5); (7) - good = (0/j=1, 0/j=2, 0.25/j=3, 1/j=4, 0.25/j=5); - excellent ...
... excellent = (0/j=1, 0/j=2, 0/j=3, 0.25/j=4, 1/j=5); B. Questionnaire, statistical processing Employees operating with the bulldozers or connected to their maintenance and logistic are asked to field in questionnaire. Questionnaire have multiple choices for evaluation (linguistic variables) of each ...
... ns. Each combination represents one possible input for synthesis and evaluation of A. Ac = [μR j=1, …, n, μM j=1, …, n ,…, μS j=1, …, n] , for all c = 1 to C (2) If only values of µR,M,S j = 1, …, 5 ≠ 0 are taken into consideration, o outcomes (o = 1 to O, where O˂=C) are obtained. ...Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić. "A Fuzzy Expert Model for Availability Evaluation" in Proceedings of the 2019 20th International Carpathian Control Conference (ICCC), AGH University of Science and Technology, Kraków - Wieliczka, Poland (2019)